.386
DATA      SEGMENT USE16
SUM       DW  ?
DATA      ENDS
CODE      SEGMENT USE16
ASSUME CS:CODE,   DS:DATA
BEG:    MOV   AX, DATA   
		MOV   DS, AX
		
		MOV CX,100
		MOV  AX, 0
AGAIN:  ADD AX, CX
		LOOP  AGAIN
		MOV  SUM, AX
		MOV AH,4CH
		INT 21H
CODE      ENDS
 END  BEG				 
